RU6008U1 - ELEMENT OF TRANSFORMABLE CABLE-ROD STRUCTURE - Google Patents

Abstract

1. An element of a transformable cable-stayed-rod structure, comprising a hollow shaft with cables and a spring fixed inside it, connected to at least one cable-staying cable and transforming the structure from a compact state into an operational one by pulling this cable-staying cable inside the shaft, characterized in that it contains a latch, connected to the spring and / or cable-stayed, installed inside the hollow rod with the possibility of sliding in its cavity along the line of action of the spring in one direction and jamming in this cavity when shifting in the opposite direction, and the latch is equipped with one or more elastic membranes fixed in it in its central part, and the edges in the operational state obliquely touching the inner surface of the hollow rod. 2. An element according to claim 1, characterized in that on the inner surface of the hollow rod there are transverse grooves, for example, in the form of a thread, into which the edges of the membranes abut. An element according to claim 1, characterized in that the cavity of the rod has two extensions located in places corresponding to the extreme position of the retainer membranes inside the rod and that the edges of the membranes are straightened, followed by a change in the direction of their inclination and opposite directions of sliding and jamming of the retainer inside the rod.

Description

TRANSFORMABLE CABLE-ROD ELEMENT

The utility model relates to mobile architecture and can be used for erection and dismantling in a short time of buildings for various purposes.

Known constructions of mobile buildings, consisting of rods connected to the cable shunts. US Pat. No. 1, 1, shows Hyony, examples of designs of spherical domes and linear supports based on a limited set of rod elements and flexible cable ties.

Such designs lend themselves to compact packaging with a certain lengthening of cable-stayed ties.

M. cl. E 04 H 1/12 E 04 H 12/18

CONSTRUCTIONS

 . i ..-; , - their lengths and thereby the transformation of the entire structure from a compact state to an operational one.

Of these structures, the closest in technical essence to the proposed one is the core element of an elastically transformable structure 2, inside of which there is a spring tensioning cable-stayed couplings connected to it. The resulting structural plate has an upper, lower and middle chords, which are a network of non-spring-loaded cables, the structure is fixed in the operational state by snapping a conical thickening located at the end of the rod element in the connecting unit in which the ends of the spring-loaded cable and spring-loaded cable are fixed lower belt. In addition to these rod elements, the structure contains diagonal rods pivotally connected to each other and with rod elements in the connecting nodes with the formation in the operational state of rigid triangles connecting all three zones of the structure.

The disadvantage of this design is the complexity and variety of configurations of the connecting nodes related to different zones. In addition, the extension of the cables, which is inevitable during prolonged use, cannot be compensated by the reduction of the springs due to the rigid fixation of the ends of the rod elements in the connecting nodes, and therefore the structure loses its elasticity and does not retain the desired shape.

The purpose of the proposed utility model is to eliminate these drawbacks by unifying the rigid elements and ensuring the fastening of the spring-loaded cables in operational condition due to the clamps that do not interfere with their tightening under the action of the springs.

This goal is achieved by the fact that:

-the design contains the same diagonally located rod elements equipped with a spring and interconnected by a constant length of cable-stayed belts and spring-loaded cable ties between them;

element in one direction leads to jamming in the element, and a shift in the opposite direction, for example, under the action of a spring, is free;

- the inner surface of the element in the area of the location of the latch is provided with transverse grooves, for example in the form of threads that improve adhesion when jamming the latch;

-fixer changes the direction of movement, at which it is jammed, to the opposite as a result of falling into the extreme of the positions occupied by it inside the element of the element, which makes it possible to element-wise unlock all spring-loaded cables of the structure, disconnecting the opposite ends of these cables and allowing the latch to take the extreme position under the action of the spring inside the element, after which it ceases to prevent the spring from stretching when the structure is transformed into a compact state.

The essence of the utility model is illustrated by the drawing, where Fig. 1 shows a fragment of a structural plate formed in an operational state by a structure of the proposed elements; figure 2 is a longitudinal section of an element in operational condition; on figs. and 4 - mounting options for a spring-loaded cable stay inside the element, due to the effect of the chain-link, doubling and tripling the length of the cable-stayed section drawn into the element under the action of a spring;

figure 5 is a longitudinal section of an element before the transformation of the structure into a compact state;

figure 6 is a longitudinal section of a structural element in its compact state.

The positions in the drawing indicate:

Tubular body - 1; threaded sleeve - 2; places of punching - 3; spring - 4; pins - 5.6 and 7; spring-loaded guys - 8; non-spring loaded guys - 9; stubs - 10 and 11; eye bolt - 12; nuts - 13; washers - 14; membranes - 15; membrane petals - 16; thread grooves - 17; the tip of the spring-loaded guy - 18; lateral flats of the tip - 19; slots in the body - 20 and 21.

a spring 4 is fixed in the housing 1 with the help of a pin 5, connected to the cable stay 8 by means of an eye bolt 12, which forms a latch together with the membranes 15 mounted on it with the help of nuts 13 and washers 14, obliquely abutting the petals 16 in the grooves of the thread 1 of the sleeve 2.

The spring-loaded guy 8 through the tip 18 and the pin b is detachably mounted in the cap 11 and the slot 20. of the housing 1, where the tip 18 is installed due to flats 19. The opposite end of the guy 8 penetrates through the slot 21 into the housing 1 of another element and at least once around the pin 7 is attached to the ear ring eye bolt 12 (see. Fig. 2, 4) or passing through it is attached to the pin 7 (see. Fig. 3).

Due to the tilt of the petals 16 in the opposite direction from the spring 4 (see Fig. 2), they do not interfere with the movement of the latch when the spring is shortened, but impede its movement in the opposite direction due to jamming in the grooves 17 of the sleeve 2. This allows the spring 4 to tighten the cable 8 when it is elongated during operation, but, fixing the spring 4 from tension, prevents elastic deformation of the structure under the action of loads exceeding the force of the spring.

The length of each spring-loaded cable stay 8 is calculated in such a way that, in the operational state, the retainer associated with it is located inside the threaded sleeve 2, and the stiffness and number of membranes 15 should provide resistance to the perceived cable stay 8.

To transform the structure into a compact state, it is necessary to first bring the elements into a state (see Fig. 5), in which the membranes 15, when the spring 4 is shortened, exit from the sleeve 2 to the lower one of the extensions formed at its ends in the element cavity. In this case, the petals 16 of the membranes 15 are straightened and, in the reverse movement of the latch against the action of the spring 4, deviate to its side and, falling into the grooves 17 of the sleeve 2, prevent this spring from shrinking, preventing the latch from moving through the sleeve until the petals 16 exit the grooves 17 ( see Fig. 6). To perform the transformation into a compact state, it is necessary for each element to free the end of the cable 8 with a tip 18 of

plugs And and slots 20 of a similar structural element and allow the spring 4 to bring the latch into the position shown in FIG. 5, and then pulling the tip 18 with the help of a cable 8, move the latch to the position corresponding to FIG. 6.

When all structural elements are brought into this state, the sagging of the cables 8 will allow them to be assembled into a tight compact bundle that does not tend to self-open into operational condition.

In order to give the synchronized self-opening ability of the structure assembled in the ligament, it is necessary to fix the ligament with a bandage and end stops and in each element, by additional pulling of the sagging cable 8 (see Fig. 6), remove all the petals 16 from the mesh with the grooves 17 of the sleeve 2, allowing them to straighten the top of the extensions formed in the cavity of the element at the ends of the sleeve 2.

After that, the latch will no longer prevent the spring 4 from contracting, and the whole structure will acquire the ability to instantly transform into an operational state when unfastening the bandage that prevents this. For a smoother and safer transformation into operational condition, the same actions with each element should be performed without bandage and stops. In this case, the design will gradually become operational. The above possibilities allow flexible use of structures based on the application of the proposed element, and their spatial configuration can vary widely without changing the design of the elements, but only by changing the length of the cables and the scheme of their connections with the elements.

Sources of information:

1. US patent No. 3063521, class 52-646, published. 1962.

2. U.S. Patent No. 3771243, M.C. E04H 12/18, published. 1973 (prototype).

Claims (3)

1. An element of a transformable cable-stayed-rod structure, comprising a hollow shaft with cables and a spring fixed inside it, connected to at least one cable-staying cable and transforming the structure from a compact state into an operational one by pulling this cable-staying cable inside the shaft, characterized in that it contains a latch, connected to the spring and / or cable-stayed, installed inside the hollow rod with the possibility of sliding in its cavity along the line of action of the spring in one direction and jamming in this cavity when shifting in the opposite direction, and the latch is equipped with one or more elastic membranes fixed in it in its central part, and the edges in the operational state obliquely touching the inner surface of the hollow rod.  2. The element according to claim 1, characterized in that on the inner surface of the hollow rod there are transverse grooves, for example, in the form of threads, into which the edges of the membranes abut. 3. The element according to claim 1, characterized in that the cavity of the rod has two extensions located in places corresponding to the extreme position of the retainer membranes inside the rod and to straighten the edges of the membranes, followed by a change in the direction of their inclination and change of direction of sliding and jamming the retainer inside the rod to the opposite .